S-24C256C Datasheet PDF - Seiko


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S-24C256C
Seiko

Part Number S-24C256C
Description 2-WIRE SERIAL E2PROM
Page 30 Pages

S-24C256C datasheet pdf
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S-24C256C
www.sii-ic.com
© SII Semiconductor Corporation, 2010-2013
2-WIRE SERIAL E2PROM
Rev.2.0_02_S
The S-24C256C is a 2-wire, low current consumption and wide range operation serial E2PROM. The S-24C256C has the
capacity of 256 K-bit, and the organization is 32768 words × 8-bit. Page write and sequential read are available.
Features
Operating voltage range
Read:
1.6 V to 5.5 V
Write:
1.7 V to 5.5 V
Page write:
64 bytes / page
Sequential read
Operation frequency:
1.0 MHz (VCC = 2.5 V to 5.5 V)
400 kHz (VCC = 1.6 V to 2.5 V)
Write time:
5.0 ms max.
Noise suppression:
Schmitt trigger and noise filter on input pins (SCL, SDA)
Write protect function during the low power supply voltage
Endurance:
106cycles / unit*1 (Ta = +25°C)
Data retention:
100 years (Ta = +25°C)
Memory capacity:
256 K-bit
Write protect:
100%
Initial shipment data:
FFh
Lead-free (Sn 100%), halogen-free*2
*1. For each unit (unit: the 4 bytes with the same address of W14 to W2)
*2. Refer to “Product Name Structure” for details.
Packages
8-Pin SOP (JEDEC)
8-Pin TSSOP
Caution
This product is intended to use in general electronic devices such as consumer electronics,
office equipment, and communications devices. Before using the product in medical equipment
or automobile equipment including car audio, keyless entry and engine control unit, contact to
SII Semiconductor Corporation is indispensable.
1



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2-WIRE SERIAL E2PROM
S-24C256C
Pin Configurations
1. 8-Pin SOP (JEDEC)
8-Pin SOP (JEDEC)
Top view
18
27
36
45
Figure 1
S-24C256CI-J8T1U4
Rev.2.0_02_S
Table 1
Pin No
Symbol
Description
1 A0 Slave address input
2 A1 Slave address input
3 A2 Slave address input
4
GND
Ground
5
SDA*1
Serial data I/O
6
SCL*1
Serial clock input
Write protect input
7
WP Connected to VCC:
Protection valid
Open or connected to GND: Protection invalid
8
VCC
Power supply
*1. Do not use it in high impedance.
2. 8-Pin TSSOP
8-Pin TSSOP
Top view
18
27
36
45
Figure 2
S-24C256CI-T8T1U4
Table 2
Pin No
Symbol
Description
1 A0 Slave address input
2 A1 Slave address input
3 A2 Slave address input
4
GND
Ground
5
SDA*1
Serial data I/O
6
SCL*1
Serial clock input
Write protect input
7
WP Connected to VCC:
Protection valid
Open or connected to GND: Protection invalid
8
VCC
Power supply
*1. Do not use it in high impedance.
Remark Refer to the “Package drawings” for the details.
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Rev.2.0_02_S
Block Diagram
SCL
SDA
A2
A1
A0
Start / Stop
Detector
LOAD
Device Address
Comparator
Serial Clock
Controller
COMP
LOAD INC
R/W
Address
Counter
Y Decoder
DIN
DOUT
Figure 3
2-WIRE SERIAL E2PROM
S-24C256C
VCC
WP
GND
Voltage Detector
High-Voltage Generator
Data Register
X Decoder Memory Cell Array
Selector
Data Output
ACK Output
Controller
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2-WIRE SERIAL E2PROM
S-24C256C
Rev.2.0_02_S
Absolute Maximum Ratings
Table 3
Item
Symbol
Absolute Maximum Ratings
Unit
Power supply voltage
VCC
0.3 to +6.5
V
Input voltage
Output voltage
VIN
VOUT
0.3 to +6.5
0.3 to +6.5
V
V
Operation ambient temperature
Storage temperature
Topr
Tstg
40 to +85
65 to +150
°C
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
Recommended Operating Conditions
Table 4
Item
Power supply voltage
High level input voltage
Low level input voltage
Symbol
Condition
VCC
Read Operation
Write Operation
VIH
VCC = 1.8 V to 5.5 V
VCC = 1.6 V to 1.8 V
VIL
VCC = 1.8 V to 5.5 V
VCC = 1.6 V to 1.8 V
Ta = 40°C to +85°C
Min. Max.
1.6 5.5
1.7 5.5
0.7 × VCC
0.8 × VCC
5.5
5.5
0.3
0.3
0.3 × VCC
0.2 × VCC
Unit
V
V
V
V
V
V
Pin Capacitance
Item
Input capacitance
I/O capacitance
Table 5
Symbol
CIN
CI / O
Condition
VIN = 0 V (SCL, A0, A1, A2, WP)
VI / O = 0 V (SDA)
(Ta = +25°C, f = 1.0 MHz, VCC = 5.0 V)
Min.
Max.
Unit
10 pF
10 pF
Endurance
Table 6
Item
Symbol Operation Ambient Temperature
Endurance
NW
Ta = +25°C
*1. For each unit (unit: the 4 bytes with the same address of W14 to W2)
Min.
106
Max.
Unit
cycles / unit*1
Data Retention
Item
Data retention
Symbol
Table 7
Operation Ambient Temperature
Ta = +25°C
Min.
100
Max.
Unit
year
4




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